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Full Discussion: delete lines from a file.
Top Forums Shell Programming and Scripting delete lines from a file. Post 50288 by oracle8 on Tuesday 20th of April 2004 06:22:32 PM
Old 04-20-2004
Data delete lines from a file.
I have a file which has about 500K records and I need to delete about 50 records from the file. I know line numbers and am using
sed '13456,13457,......d' filename > new file.
It does not seem to be working.
Any help will greatly appreciated.
 

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LEARN ABOUT DEBIAN

rsyncrypto_recover

RSYNCRYPTO_RECOVER(1)					  Rsyncrypto_recover User Manual				     RSYNCRYPTO_RECOVER(1)

NAME

       rsyncrypto_recover - recover all usable data from corrupted rsyncrypto filemaps

SYNOPSIS

       rsyncrypto_recover badfile > goodfile

DESCRIPTION

       This manual page documents the rsyncrypto_recover command.

       When  the  rsyncrypto  command is used with the --name-encrypt command, a file containing the mapping from the plain text representation to
       the encrypted file names is formed. This file mapping has a strict format of records delimited by a NULL byte.

       A bug introduced in version 1.07 or rsyncrypto, and solved in version 1.09, caused this file to be somewhat corrupted under certain circum-
       stances, most notably the use of the --delete-keys command line option.

       It  is  important  to  note that the only records corrupted are records that were due to be deleted anyways. This bug did not result in any
       loss of actual important data.  It did, however, leave behind a file that rsyncrypto then refused to open.

       rsyncrypto_recover will read in a file map, and output to the standard output only those records that are valid.

PARAMETERS

       badfile
	      A file map that contains some good and some corrupted records.

SEE ALSO

       rsyncrypto(1)

AUTHOR

       rsyncrypto was written by Shachar Shemesh for Lingnu Open Source Consulting ltd.  http://www.lingnu.com

       This manual page was written by Shachar Shemesh <shachar@debian.org>

PROJECT HOMEPAGE

       http://rsyncrypto.lingnu.com

Lingnu Open Source Consulting					   May 13, 2008 					     RSYNCRYPTO_RECOVER(1)
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